The end is nigh! No, really. It is!

With the
exception of the British pound Sterling, no fiat currency has lasted longer than
42 years. In America, we are in year 41.

The average life expectancy for a fiat currency is 27
years, with the shortest life span being one month. Founded in 1694, the
British pound Sterling is the oldest fiat currency in existence. At a ripe old
age of 317 years it must be considered a highly successful fiat currency. However, success is relative.
The British pound was defined as 12 ounces of silver, so it's worth less than
1/200 or 0.5% of its original value. In
other words, the most successful long standing currency in existence has lost
99.5% of its value.

Given the undeniable track record of
currencies, it is clear that on a long enough timeline the survival rate of all
fiat currencies drops to zero.